Introduction to Genesys-Logger

Genesys-Logger is a powerful logging library perfect for developers who need efficient API logging and debugging. It provides a wide range of functionality and dozens of APIs for flexible logging in various development environments.

Getting Started

First, install genesys-logger using npm:

  
  npm install genesys-logger
  

Basic Usage

Here’s an example of how to use genesys-logger:

  
  const logger = require('genesys-logger');

  logger.log('info', 'This is an informational message');
  logger.log('warn', 'This is a warning message');
  logger.log('error', 'This is an error message');
  

APIs Description and Usage

Below are some of the useful APIs provided by genesys-logger:

• logger.log(level, message): Logs a message at the specified level (e.g., ‘info’, ‘warn’, ‘error’).
• logger.info(message): Shorthand for logger.log('info', message).
• logger.warn(message): Shorthand for logger.log('warn', message).
• logger.error(message): Shorthand for logger.log('error', message).
• logger.setLevel(level): Sets the logging level globally.
• logger.addHandler(handler): Adds a custom handler for logging output.

Custom Handler Example

  
  const customHandler = (level, message) => {
      console.log(`[${level.toUpperCase()}]: ${message}`);
  };
  logger.addHandler(customHandler);

  logger.info('Custom handler info message');
  

Application Example

Below is a sample app utilizing genesys-logger:

  
  const express = require('express');
  const logger = require('genesys-logger');

  const app = express();

  logger.setLevel('info');

  app.use((req, res, next) => {
      logger.info(`Received request: ${req.method} ${req.url}`);
      next();
  });

  app.get('/', (req, res) => {
      logger.info('GET / request');
      res.send('Hello, world!');
  });

  app.listen(3000, () => {
      logger.info('Server is running on port 3000');
  });
  

This sets up an Express server that uses genesys-logger to log incoming requests and other server events.

Conclusion

Genesys-logger is a versatile and powerful choice for developers looking for an efficient way to manage logging and debugging in their applications. With its extensive API and ease of use, genesys-logger can help enhance your development workflow significantly.

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